BES Comprehensive Supplies and Services We provide a comprehensive portfolio of mechanical and civil engineering services. Our services range from project design to project management which includes the following: Project Management, HDPE Welding and Installation, Engineering Consultants: Electrical, Mechanical, Hydraulics, System Optimization, Civil and Building Construction, Steel Erection and Fabrication, LP & HP Piping Specialists, Precipitators, Rigging Rope Access Work, Transformers & Substation Refurbishment, Incubation of Small Business